Putty applicator



Dec 6, 1955 w. c. slsK ET A1.'

PUTTY APPLICATOR Filed Feb. 13, 1.955

IN V EN TOR5 United States Patent O M 2,725,595 PUTrY APPLICATOR winiain c. sisk and Joseph c. Bruna, Los Anas, Calif. Application February 13, 195s, serial No. 336,656 2 claims. (c1. iii- 3.5)

This invention relates to dispensing devices and more particularly to a device for dispensing or applying putty into nail holes, cracks, or other similar recesses.

An object of this .invention is to provide a putty applicator wherein putty may be applied at the desired point and smoothed onto the treatedy surface in one operation.

Another object of this invention is to provide a putty applicator which has a discharge chamber and is provided with means automatically expressing putty or other plastic material into such chamber.

A further object of this invention is to provide a putty applicator incorporating a tool which will cut ot theV discharge ow of putty and smooth the deposited putty.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a front elevation of the novel putty applicator;

Figure 2 is a vertical section taken on line 2-2 of Figure 1, and showing internal detail of construction; and,

Figure 3 is a horizontal section taken substantially along line 3-3 of Figure 2, and showing the manner of attaching the expressing unit to the handle of the applicator.

Referring more particularly to the drawings, reference numeral indicates generally a body or reservoir which preferably takes the form of a cylinder constituting a handle. The lower end of this reservoir is provided with a pair of diametrically opposed flanges 12 and the upper end of the reservoir or handle 10 rigidly carries a discharge head indicated generally at 14. The`discharge head is shown as welded as at 16, to the handle but may be secured thereto in any convenient manner.

The interior of the handle or reservoir is adapted to contain a supply of putty or similar plastic material and in order to express putty therefrom into the discharge head, an expressing or plunger mechanism, indicated generally as 18, is disposed within the reservoir.

This assembly comprises a guide rod 20 which has a threaded end 22 receiving a threaded closure plug 24 which may be inserted into the lower end of the handle in sealing engagement therewith. In order to secure the rod and plug in place, a latching washer 26 is secured to the assembly by clamping the same between the plug 24 and threaded lock ring 28. Two diametrically opposed inturned anges 30 cooperate with the anges 12 on the reservoir to secure the expressing assembly in place. As seen more clearly in Figure 3, the securing engagement between the reservoir and the expressing assembly is provided by the several interrupted flanges 12 and 30 and an angular movement between the expressing assembly and the reservoir will effect either engagement or disengagement between the anges.

A spring 32 is disposed concentrically of guide rod 2,725,595 Patentedl Dec.- 6, 1955 2 20 and abuts at its lower. end the closure plug 24 whiley itsl upper. end engages against a generally cup-shaped member 34 which is slidable longitudinally `on guide rod 20. This engagement is effected by a lower neck portion 36'of the cup memberV peripherally engaging uponl the guide rod and the upper portion of the cup member presents a flange 38 securedby rivets 40 to a plungen 42.

The discharge head presents a chamber 44 andhafdischarge bore 4 6 constituting a passageway in communication with the interior of the reservoir and a plunger bore 48 is provided ini the head coaxially opposite from discharge bore 46. A manually operablefplungerhor piston 50 is slidable within bore 48 and is urged to an vextended position with respect to the discharge head under. action of coil-spring 52 operating against opposedsurfaceson the discharge head and the .enlarged head r 54 offthe plunger. When the plunger '50 is urged manually .inwardly past the shoulder 56 onvdis'charge head 14, putty or other plastic material disposed within discharge bore 46 will be urged outwardly thereof by the plunger.r` Y

A thimble or nipple 58 is fxedly itted within4 an en-A larged portion of the discharge bore 46 and cooperates with anotherv thimble or nipple 60 abutting the outer face of the discharge head in maintaining a resilient gasket or washer 62 in place. The thimbles 58 and 60 are preferably metallic and gasket 62 is preferably made of rubber or the like, and these membersA constitute a nozzle directing the discharge of putty or other plastic material from the head 14.

The outer surface of handle or reservoir 10 carries a bracket assembly 64 welded thereto as at 66. The bracket assembly includes a pair of spaced outstanding ears 68 which pivotally carry, by bolt 70, a trigger 72. The trigger is preferably in the form of a bell crank and the end remote from the usual linger portion is provided with a pivot pin 74Y upon which is journaled one end of a combined cut-off and smoothing blade 76. Tension spring 78 is also connected to this end of the trigger and to the curved outstanding portion 80 of the bracket assembly 64, thus maintaining the trigger and blade 76 in the position shown in Figure 2.

A guide 82 issecured to the handle above the bracket assembly and has a pair of spaced ears 84 which engage over and guide opposite longitudinal edges of an intermediate portion of the blade 76.

By manipulating the trigger 74, blade 76 is moved transversely across the discharge opening of the nozzle assembly between a position adjacent the nozzle and a position overlying the nozzle. In this manner, when the applicator nozzle is positioned over a nail hole or other recess in the work surface, plunger or piston 50 may be actuated to discharge putty through bore 46 into the recess and, when suflicient putty has been discharged, trigger 72 may be manipulated to cut olf the discharge flow of putty and, when released, blade 76 will smooth out the putty which has been applied. That is, the nozzle is placed so as to cover a nail hole or depression in the work surface with the gasket 62 sealingly engaged against the work surface so that when the plunger 50 is operated the putty will be forced into the space between the nozzle and the work surface and will thereby completely fill the depression. Since the upper end of blade 76 overlaps a portion of the gasket 62 even when the trigger 72 is released, the blade, being exible, will slide along the work surface between the work surface and the resilient gasket 62 to cut through the putty and detach that portion which has filled the hole from the remainder of the discharge putty when the trigger is operated. Releasing the trigger will permit the flexible blade to be drawn across the surface of the putty filling the hole to smooth the same so that no further operation need In @mei-"10 'mainfam piston so within Vheproper"iif'ni'fs 6r Sliding reiatio'n 1in discharge 'head I1-4,V fa 2por-tim 'off -fne pin 88 s'e'cu'r'edto vthe head vandextending transversely of the plunger; lwill i.cooperate `vvith'the opposite extr'erwnfities ofth-e-slt E8'6 `t() limit nSliding mOi/ement "off piston "50 "in the head.

From the foregoing, the construction and operationof the device will b'e readily understood andfurther exlzalaiation is believed to be unnecessary. However, since nu,- xrieous modic'a'tions land changes ywill readily 'occur 'to th e "skilled 'in lthe art, itis 'not desired to 1limit the invention Jto 'the Lenact construction shownand described, anfdf'a'ccordingly all, suitable modifications and vequivalents may be Lresorted to, falling Within Vthe scope 'of the append'e'dcla'iriis, l f

vWhat :is claimed -as new is as follows:

l. Aputty rapplicator "comprising "a reservoir adapted to receive "a Asupply 'of putty, a head on the reservoir having a 'discharge passage communicating therewith, `means in said reservoir for expressing putty into said passage, a

lmanuallyoperable plunger -slidably vmounted in said head and projectible within a portion of said passage to discharge putty therefrom, a discharge nozzle on the head at the outer extremity of said passage having a flexible annular member for pressing against a piece vof Work to surround an area to be puttied, a blade carried by said reservoir having one end portion disposed crosswise of and in front of said memberrfor pressing .against the Work by said member, means 'on said reservoir operatively conneced to the other end of asaid blade for viiioving the first named end of the blade from one side of said member to cut through 'putty discharged from said nozzle at said area and smooththe discharged putty over said area.

2. The combination of claim l, said blade being flexible for pressing against the Work by said member.

References Cited inthe file of this patent UNITED STATES PATENTS 

